SD21B/0432

Two storey extension at side and rear and connection to the existing services thereon consisting of accommodation at the side extension and an increase in the size of kitchen and the size of two existing bedrooms at the rear extension two storey extensions at side and rear and connection to the existing services

Split decision

Core Reason for the Refused Part

The proposal was refused due to non-compliance with design standards regarding roof profiles and entrance locations, inadequate separation distances causing privacy issues, and significant technical deficiencies regarding proximity to public surface water infrastructure.

Decision Maker's Conclusion

  • The proposed design fails to visually integrate with the existing character of the area due to the inappropriate placement of the family flat entrance and the lack of a 'Dutch' hip roof profile to match the existing dwelling.
  • The development provides a separation distance of only 17.3 metres between opposing first-floor windows, failing to meet the required 22-metre standard and resulting in undue overlooking of the property at No. 13 Foxborough Lawn.
  • The extension is positioned too close to a 225mm public surface water sewer, providing only a 1-metre setback instead of the required 3 metres, which is prejudicial to public health and restricts essential maintenance access.

Cited Policies (CDP)

SDCC House Extension Design Guide 2010Section 11.3.1 Residential (v) PrivacySDCC Development Plan

Decision Document Summary

The application proposed a two-storey side and rear extension to a dwelling at 1, Foxborough Grove, Lucan. The planning authority issued a split decision, refusing permission for elements of the development that failed to comply with the SDCC House Extension Design Guide and the County Development Plan. The refusal was primarily based on the overbearing visual impact of the roof design, privacy concerns arising from insufficient separation distances to the rear, and critical technical failures r...
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